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Add get_fw_dev_path callback for usb bus.

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Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Gleb Natapov 2010-12-08 13:35:03 +02:00 committed by Blue Swirl
parent ab28ccc0c6
commit cdedd00613
1 changed files with 42 additions and 0 deletions
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42
hw/usb-bus.c
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@ -5,11 +5,13 @@
#include "monitor.h"
static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent);
static char *usbbus_get_fw_dev_path(DeviceState *dev);
static struct BusInfo usb_bus_info = {
.name = "USB",
.size = sizeof(USBBus),
.print_dev = usb_bus_dev_print,
.get_fw_dev_path = usbbus_get_fw_dev_path,
};
static int next_usb_bus = 0;
static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
@ -307,3 +309,43 @@ USBDevice *usbdevice_create(const char *cmdline)
}
return usb->usbdevice_init(params);
}
static int usbbus_get_fw_dev_path_helper(USBDevice *d, USBBus *bus, char *p,
int len)
{
int l = 0;
USBPort *port;
QTAILQ_FOREACH(port, &bus->used, next) {
if (port->dev == d) {
if (port->pdev) {
l = usbbus_get_fw_dev_path_helper(port->pdev, bus, p, len);
}
l += snprintf(p + l, len - l, "%s@%x/", qdev_fw_name(&d->qdev),
port->index);
break;
}
}
return l;
}
static char *usbbus_get_fw_dev_path(DeviceState *dev)
{
USBDevice *d = (USBDevice*)dev;
USBBus *bus = usb_bus_from_device(d);
char path[100];
int l;
assert(d->attached != 0);
l = usbbus_get_fw_dev_path_helper(d, bus, path, sizeof(path));
if (l == 0) {
abort();
}
path[l-1] = '\0';
return strdup(path);
}